package com.atguigu.cloud.controller;

import com.atguigu.cloud.entities.PayDTO;
import com.atguigu.cloud.resp.ResultData;
import jakarta.annotation.Resource;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController
public class OrderController {
	//public static final String PaymentSrv_URL = "http://localhost:8001";//先写死，硬编码
	public static final String PaymentSrv_URL = "http://cloud-payment-service";//服务注册中心上的微服务名称
	
	@Resource
	private RestTemplate restTemplate;
	
	@Resource
	private DiscoveryClient discoveryClient;
	
	/**
	 * 一般情况下，通过浏览器的地址栏输入url，发送的只能是get请求
	 * 我们底层调用的是post方法，模拟消费者发送get请求，客户端消费者
	 * 参数可以不添加@RequestBody
	 *
	 * @param payDTO
	 * @return
	 */
	@GetMapping("/consumer/pay/add")
	public ResultData addOrder(PayDTO payDTO) {
		return restTemplate.postForObject(PaymentSrv_URL + "/pay/add", payDTO, ResultData.class);
	}
	
	// 删除+修改操作作为家庭作业，O(∩_∩)O。。。。。。。
	@GetMapping("/consumer/pay/get/{id}")
	public ResultData getPayInfo(@PathVariable("id") Integer id) {
		return restTemplate.getForObject(PaymentSrv_URL + "/pay/get/" + id, ResultData.class, id);
	}
	
	@GetMapping(value = "/consumer/pay/get/info")
	private String getInfoByConsul()
	{
		return restTemplate.getForObject(PaymentSrv_URL + "/pay/get/info", String.class);
	}
	
	
	@GetMapping("/consumer/discovery")
	public String discovery()
	{
		List<String> services = discoveryClient.getServices();
		for (String element : services) {
			System.out.println(element);
		}
		
		System.out.println("===================================");
		
		List<ServiceInstance> instances = discoveryClient.getInstances("cloud-payment-service");
		for (ServiceInstance element : instances) {
			System.out.println(element.getServiceId()+"\t"+element.getHost()+"\t"+element.getPort()+"\t"+element.getUri());
		}
		
		return instances.get(0).getServiceId()+":"+instances.get(0).getPort();
	}
	
}